{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1050-2ED42-0HA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1050-2ED42-0HA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1050-2ED42-0HA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1050-2ED42-0HA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1050-2ED42-0HA0, molded case circuit breaker, 4-pole, 50 A (at 40 °C), breaking capacity 52.5 kA at 240 V, line protection, with shunt trip (STL).","salesMarkdown":"It carries a continuous current rating of 50 A at 40 °C, derating to 45 A at 70 °C, so the thermal curve is what governs the real ampacity in a warm enclosure — don't size it at 50 A if the ambient inside the panel runs above 55 °C. The breaking capacity hits 52.5 kA at 240 V and 32 kA at 415 V, which covers most industrial service-entrance and feeder applications where fault currents are high. ## Shunt trip and overcurrent release Verify the busbar or lug kit spacing against the existing panel layout — the shunt trip adds no extra width, but the wiring for the STL control signal needs a separate pair of terminals. Maximum power loss is 14.6 W at rated current. In a densely packed panel, that heat needs to be considered for the enclosure's thermal budget — especially if the breaker is mounted next to other heat-generating devices.","metaTitle":"Siemens 3VA1050-2ED42-0HA0 SENTRON MCCB, 50A, 4-Pole, 52.5kA","metaDescription":"Siemens 3VA1050-2ED42-0HA0 SENTRON molded case circuit breaker, 50A rated at 40°C, 4-pole, 52.5kA breaking at 240V. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"101.6 mm","Height":"130 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"52.5 kA","at 415 V":"32 kA","at 440 V":"13.6 kA","at 500 V":"7.5 kA","at 690 V":"7.5 kA","at 40 °C":"50 A","at 45 °C":"50 A","at 50 °C":"50 A","at 55 °C":"49 A","at 60 °C":"48 A","at 65 °C":"46 A","at 70 °C":"45 A","Depth [In]":"2.76 in","Width [In]":"4 in","Height [In]":"5.12 in","Trip Indicator":"No","Number Of Poles":"4","Voltage Trigger":"Yes","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"No","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"14.6 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA10502ED420AA0","Design Of The Auxiliary Release":"shunt trip (STL)","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM210","Design Of Short-Circuit Protection":"For switching power values in DC networks, see the 3VA molded case circuit breaker device manual; link to be found under Service & Support in the last chapter","protection class IP / on the front":"IP40","design of the N-conductor protection":"without","Of The Integrated Auxiliary Trip Unit":"3VA9688-0BL30","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"600 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"No","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"0","Switching Capacity Class Of The Circuit Breaker":"B","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=3577&mlfb=3VA1050-2ED42-0HA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1050-2ED42-0HA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1050-2ED42-0HA0 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Send your request with quantity and delivery target; availability and current pricing are confirmed at quote time."},{"question":"What is 3VA1050-2ED42-0HA0's listed depth (70 mm) on this component line?","answer":"The depth is 70 mm (2.76 in), which is the standard depth for the 3VA1 frame size in this series."},{"question":"What is 3VA1050-2ED42-0HA0's listed width (101.6 mm) on this component line?","answer":"The width is 101.6 mm (4 in), corresponding to the 4-pole housing width."},{"question":"Will 3VA1050-2ED42-0HA0 drop into a panel that was specified around 3VA1010-2ED32-0AD0 without rewiring?","answer":"The 3VA1050-2ED42-0HA0 is a 50 A, 4-pole breaker with a shunt trip, while the 3VA1010-2ED32-0AD0 is a lower-current variant. The physical footprint (height, width, depth) is the same 3VA1 frame size, so it will mount in the same panel cutout and busbar spacing. However, the wiring must be sized for 50 A instead of the lower rating, and the shunt trip requires its own control wiring that the other variant may not have."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1050-2ED42-0HA0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3VA1050-2ED42-0HA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}